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Submission #126855

# Submission time Handle Problem Language Result Execution time Memory
126855 2019-07-08T14:18:46 Z MohamedAhmed04 Examination (JOI19_examination) C++14
0 / 100
 3000 ms 54040 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define mp make_pair
using namespace std;
using namespace __gnu_pbds;
typedef pair<int, int> pii;
typedef tree<pii, null_type, less<pii>, rb_tree_tag, tree_order_statistics_node_update> OST;

const int N = 100001;

OST bit[N];

void insert(int x, int y)
{
	for(int i = x; i < N; i += i & -i)
		bit[i].insert(mp(y, x));
}

void remove(int x, int y)
{
	for(int i = x; i < N; i += i & -i)
		bit[i].erase(mp(y, x));
}

int query(int x, int y)
{
	int ans = 0;
	for(int i = x; i > 0; i -= i & -i)
		ans += bit[i].order_of_key(mp(y+1, 0));
	return ans;
}
/*int query(int x , int y)
{
    int ans = 0 ;
    while(x > 0)
    {
        int y1 = y ;
        while(y1 > 0)
        {
            ans += bit[{x , y1}] ;
            y1 -= (y1 & -y1) ;
        }
        x -= (x & -x) ;
    }
    return ans ;
}*/

int a[N], b[N] ;

int main()
{
    int n , q ;
    scanf("%d %d" , &n, &q) ;
    for(int i = 0 ; i < n ; ++i)
    {
        cin>>a[i]>>b[i] ;
    }
    for(int i = 0 ; i < n ; ++i)
        insert(a[i] , b[i]) ;
    while(q--)
    {
        int x , y , z ;
        cin>>x>>y>>z ;
        cout<<query(N-1 , N-1) - query(x-1 , N-1) - query(N-1 , y-1) + query(x-1 , y-1)<<"\n";
    }
    return 0 ;
}

Compilation message

examination.cpp: In function 'int main()':
examination.cpp:54:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d" , &n, &q) ;
     ~~~~~^~~~~~~~~~~~~~~~~~

Subtask #1
0 / 2.0

# Verdict Execution time Memory Grader output
1 Incorrect 14 ms 9720 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3044 ms 54040 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3044 ms 54040 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 57.0

# Verdict Execution time Memory Grader output
1 Incorrect 14 ms 9720 KB Output isn't correct
2 Halted 0 ms 0 KB -